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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B2PLYP=FULLultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-148.632904
Energy at 298.15K 
HF Energy-148.478146
Nuclear repulsion energy59.773454
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP=FULLultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3606 3421 21.09      
2 A 1276 1211 0.01      
3 A 943 894 10.02      
4 A 749 710 108.62      
5 A 521 494 0.02      
6 B 3607 3422 94.88      
7 B 2238 2123 491.87      
8 B 936 888 483.28      
9 B 523 496 71.19      

Unscaled Zero Point Vibrational Energy (zpe) 7198.8 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 6829.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/6-31G*
ABC
12.29865 0.34242 0.34239

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.025
N2 0.000 1.227 -0.082
N3 0.000 -1.227 -0.082
H4 0.627 1.768 0.502
H5 -0.627 -1.768 0.502

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23141.23141.93581.9358
N21.23142.45331.01403.1151
N31.23142.45333.11511.0140
H41.93581.01403.11513.7520
H51.93583.11511.01403.7520

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.790 C1 N3 H5 118.790
N2 C1 N3 169.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.560      
2 N -0.635      
3 N -0.635      
4 H 0.355      
5 H 0.355      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.220 2.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.541 4.340 0.000
y 4.340 -16.046 0.000
z 0.000 0.000 -17.128
Traceless
 xyz
x 0.046 4.340 0.000
y 4.340 0.788 0.000
z 0.000 0.000 -0.834
Polar
3z2-r2-1.669
x2-y2-0.495
xy4.340
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.799 0.390 0.000
y 0.390 6.035 0.000
z 0.000 0.000 1.776


<r2> (average value of r2) Å2
<r2> 39.060
(<r2>)1/2 6.250